Re-order Linux default audio driver list

src/arch/arch_default.h

@@ -39,14 +39,15 @@
 #define DEFAULT_INPUT_DRIVER_LIST "X11"
 #endif
 #define DEFAULT_MOVIE_DRIVER_LIST "FFMpeg,Null"
-// ALSA comes first, as the system may have OSS compat but we don't want to use
-// it if it's actually an ALSA wrapper.
+// PulseAudio is the preferred Unix driver since it allows the gives non
+// exclusive access to the audio device, unlike ALSA.
+// Use ALSA next because it is the lowest latency.
 // Then try OSS before daemon drivers so we're going direct instead of
 // unwittingly starting a daemon.
-// JACK gives us an explicit option to NOT start a daemon, so try it third,
+// JACK gives us an explicit option to NOT start a daemon, so try it last,
 // as PulseAudio will successfully Init() but not actually work if the
 // PulseAudio daemon has been suspended by/for jackd.
-#define DEFAULT_SOUND_DRIVER_LIST "ALSA-sw,OSS,JACK,Pulse,Null"
+#define DEFAULT_SOUND_DRIVER_LIST "Pulse,ALSA-sw,OSS,JACK,Null"
 #else
 #error Which arch?
 #endif